Support for electric conductors



B. A. PUMPTON.

.SUPPORT FOR ELECTRIC CONDUCTORS.

APPLICATION FKLED APR. 10, 1920.

1,3 2,03 Patented Dec. 14,1920.

; A TTORNE Y JLD BENTLEY A. PLIMPTON, OF VICTOR, NEJV YORK.

SUPPORT FOR ELECTRIC CONDUCTORS.

Specification of Letters Patent.

Patented Boo. 14, 1920.

Application filed April 10, 1920. Serial No. 372,811.

T 0 all whom it may Be it known that I, BENTLEY A. PLrrrr- TON, a citizen of the United States of America, residing at Victor, in the county of Ontario and State of New York, have invented certain new and useful Improvements in Supports for Electric Conductors, of which the following is a specification.

My invention relates to supports for elcctric conductors, more particularly of the type adapted for use with electrical systems employing three conductors spaced at equidistant points from a central field.

An important purpose of the invention is to provide a construction requiring a minimum quantity of metal, and correspondingly economical to manufacture.

An equally important object of r y improvement is to construct and arrange the parts in such a way as to afiiord maximum rigidity and strength, so as to successfully resist all possible strains.

A further purpose of the invention is to construct a conductor support that can be readily attached to a pole without any fitting, and which can be used with poles of minimum height.

Other advantages of the invention will be made clear from the following detailed description, in conjunction with the accompanying drawings, the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Figure 1 is a side elevation, showing the application of a preferred embodiment of the invention to a pole;

Fig. 2 is a front elevation and Fig. 3 is a plan View.

The fundamental purposes and features of the invention may be practically applied in various types of construction, and while the present embodiment is intended to illustrate my ideas, it does not limit the application of the invention to the precise structure disclosed.

A designates a pole to which is attached a cross arm B. The latter may be of angle iron or wood construction, and is secured to the pole by a bolt 7) or other convenient means, and is intended to carry an insulator at each end.

0 designates a vertical arm, preferably formed of angle iron, and attached to the pole by means of bolts 0. In the construcof the same,

tion shown, the vertical arm 0 is positioned on the opposite side of the pole from the cross arm l3, and is rigidly connected to the cross arm by bracing members D. The bracing members D are formed integral. with the vertical arm 0 and have their lower ends attached to the cross arm by bolts (Z or other suitable means.

The bacing members D are preferably formed by centrally splitting the lower end of the yertical arm C, thus providing a bifurcated portion and affording diverging racing strips which straddle the pole, as shown in Fig. i, in order to bring the lower ends of the bracing strips D to the opposite side of the pole for attachment to the cross arm B.

In ore or to afford support for the upper insulator, the vertical arm C is bent horizontally at its upper end, affording the portion E which extends at right angles to the cross arm 13, or in the same direction as the conductors, and itis to be understood that a suitable insulator is mounted upon the horizontal portion E.

it is not essential that the vertical arm C nd "the cross arm B be on opposite sides of he pole, but this arrangement aiiords an extremely simple method of holding the cross arm with great rigidity, since the bracing members D are sufficiently stiii' to prevent any torsional or other strains from mater'ally affecting the cross arm.

The structure is exceedingly easy to appiy, and if there is a slight discrepancy between th position of the cross arm l3 and the vertical arm 0, the bracing strips D can be bent slightly to accommodate their attachment to the cross arm. T he structure entirely eliminates the necessity of fitting parts to the pole, and by utilizing stiff metal. such angle iron, for the vertical arm C, the tor can extend above the top of the pole. and thus make the device sus- 'ble of use with poles of minimum he ht.

The invention is to be understood as not limited to the details here shown, since the construction described may be modified without departing from the underlying features of novelty and scope of the invention, comprehended by the claims hereinafter.

I claim:

1. A conductor support comprising a cross arm, a vertical arm attached at its upper portion to one side of a pole, and adapted to have an insulator attached thereto, the vertical arm being bifurcated at its lower end and :torneing diverging bracing members which are integral with the vertical and conn cted to the cross arm.

2. A conductor support comprising a cross urn'i ntteched to one side of it pole, and :1 vertical arm adapted to be attached at its upper portion to the opposite side of the pole, id vertical nrin having its lower end bifurcated and forming diverging bracing members Wi'ch straddle the pole and are attached to said cross arm.

3. .51 conductor supgort comprising a cross 7 vertical nrin attached at one '1 e of u pole, the vertical erin being formed or an integral piece of angle iron and split at its lower end to uti oro diverging bracing strips which are attached to the cross arm.

t. conductor support comprising a cross erin secured to one side of a pole, at

vertical urin secured to the opposite side of the pole said vertical znfn'i being formed of an integral piece ot angle iron and split at diverging bracing its lower end to afford strips which inched to the cross arm, a vertical nun having its lower end bifurcated to afford diverging bracing inenioers which are attached to the cross 05111, said vertical :irin being attached at its upper portion to one side of a pole having its upper end bent horizontal y and at right angles to the cross arm to utter-d an illfilb lator support.

6. A conductor support coinprisin cross zn'ni attached to one side oi a pole vertical urin attached to the opposite I of the pole, the verticil zarin beirg formed of an integral piece O'lf angle iron. and ing its lower end split to afford divergi: bracing strips which are :ii'trichml straddle the pole and are utcross arm.

{0 LEKQ, cross arm, the upper end of the vertical zirin being bent horizontally and at right ungles to the cross urin to afford u comlnctor support.

In Witness whereof, I have hereunto signed my name.

BENTLEY A. PLEMPTON.

conductor support comprising :i 

